This is the 8072nd most frequent Korean word.
dau
The word "dau" is not a standard Korean word. It may be a romanization error or slang; context is needed for clarification.
In this sentence, '다우' (Dau) is used as a proper noun, serving as the name of a person in the subject position.
다우는 이곳에 자주 오는 것 같아요.
It seems that Dau often comes here.
Here, '다우처럼' (like Dau) shows the comparative usage, indicating the manner of studying akin to Dau.
다우처럼 집중해서 공부하세요.
Study focused like Dau.
In this instance, '다우와' (with Dau) uses the word as part of a companion expression, indicating an activity performed along with the person named Dau.